This paper considers the influence of eātuition using an asynchronous written conferencing package, FirstClass, upon retention and success rates for Mastersālevel courses in a distance learning programme as compared with similar courses that were supported in a traditional manner using faceātoāface tuition. The paper investigates the common assumption that the use of eātuition might negatively influence both retention and success rates by studying data gathered on UK Open University Masters courses in education. These data have allowed direct comparisons between eātutored and faceātoāface tutored courses to be made. The effect of linking assessment to participation in activities using FirstClass is also considered in this study. This research has revealed that eātutoring using FirstClass appears to have no significant positive or negative influence on either retention or success on such courses. (Abstract by author and publisher)